We have updated jQuery to 1.12.4 - please report related bugs here

Question

We have updated the jQuery version that Stack Overflow and Stack Exchange use from version 1.7.1 to 1.12.4 today (Tuesday, September 27, 2016). jQuery is an infrastructure library, and we've been running on an old version for a while because it worked well. However, there are a few improvements and features that made it compelling for us to upgrade, especially since some parts of the site already used a different version.

As a user of our Q&A sites, nothing should visibly change, as this is an infrastructure rather than a feature update. However, with an infrastructure update like this, there is always a chance for things to slip through the cracks.

If you encounter functionality that used to work yesterday and is broken today, please leave an answer on this thread and accept my apologies in advance.

Please be aware of our browser support matrix.

Do note that userscripts that rely on deprecated jQuery functionality (like .live() - anything in the 1.7, 1.8, 1.9 and 1.10 category, and if you can in the 3.0 as well to make a future update less likely to break your script) may need to be updated. There were no DOM or other structural changes, so selectors should still be the same.

If you're curious why we're going to jQuery 1.12.4 and not 3.1, this is a matter of incrementally upgrading and making sure things work along the way. Pretty much every 1.x version had major changes, and jQuery recommends upgrading an old 1.x version to the latest 1.12.4 and jquery-migrate 1.x plugin first and fix anything that is deprecated. We are in this stage now and want to make sure everything still works.

Answer 1

This is now status-completed

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When you are on any page on any Stack Exchange site, when you focus on search bar, and then defocus(clicking below the search bar), it makes unintended animation of search bar and also along with badges and profile picture div:

(Once, if you focus and unfocus again it doesn't happen.)

This is happening in all sites of Stack Exchange.

If you type something in search bar, then it doesn't happen.

If you need to reproduce it, you need to reload the page to see it in effect.

Answer 2

This is now status-completed

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Enter key no longer submit a comment when pressed, as it used to do before.

Observed both when adding a comment and when editing a comment.

It does work on per-site metas, i.e. bug applies to all main sites. (including MSE)

Browser: Chrome latest stable (53), Windows 10.

Answer 3

This is now status-completed

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When adding a picture to a post, if I paste a URL, the "Add Picture" button never activates. Instead, I need to upload a copy of the picture (or manually enter Markdown to point at the external URL)

Answer 4

This is now status-completed

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It appears that moderators can no longer decline flags with a custom reason. When we go to decline a flag and choose the "other" option, no text box appears and we can't enter a reason:

I observed this on Safari 10.0 running on macOS Sierra (10.12), and another moderator reproduced it in Chrome. They stated that forcibly running

$("#dis_Other").toggle()

will bring back the text box.

Answer 5

This is now status-completed

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Searching for a badge to track progress on results in dozens of the same badge

As reported on Meta Stack Overflow by Sean Vieira:

Steps to replicate

1. Navigate to your profile
2. Click on the "Choose which tag badge to track" gear icon
3. Search for a tag name

Expected results

• The tag badges for the matching tag will be displayed (bronze, silver, and gold).
• Only the tag badges matching the query will be shown (so for a perfect match, only three tag badges will be shown

Actual result

• The bronze badge is show dozens of times (see screenshot)
• No silver or gold version of the badge is shown at all.

This seems to be related to the changes in the .replaceWith(), .after() and .before() methods. From jQuery documentation:

Prior to jQuery 1.9, .replaceWith() would attempt to add or change nodes in the current jQuery set if the first node in the set was not connected to a document, and in those cases return a new jQuery set rather than the original set. The method might or might not have returned a new result depending on the number or connectedness of its arguments! As of jQuery 1.9, .after(), .before(), and .replaceWith() always return the original unmodified set. Attempting to use these methods on a node without a parent has no effect—that is, neither the set nor the nodes it contains are changed.

The bug is probably in the replaceAvailableInDom function in the the user.en.js file.

Answer 6

When I hover over "delete" link (link to example post) popup doesn't tell me that I already voted.

Windows 10 / Firefox 49.0, Chrome 53.0.2785.116 m, Edge 38.14393.0.0.

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Prior to change it did, see for example Mouseover tooltip for delete count is wrong

Answer 7

Not sure if this is related, but it looks like fonts on error popups are missing and the browser falls back to the default font.

Answer 8

It appears as though the reputation graph is no longer accepting drag events, making it impossible to move about the graph:

Answer 9

Ctrl+Enter in the search box at the top of every page used to open the search results in a new tab. Now it does nothing (Chrome 53, Linux, no userscripts) or opens the search results in the same tab (Firefox 45.3, Linux, no userscripts). Since I haven't change anything on my end recently, I blame jQuery.

Answer 10

When I do something that opens an editor, such as clicking on the “edit” button, pressing e, or clicking the 10ker “edit tags” button or pressing t, there's a long time (sometimes >1s) during which subsequent key pressed are interpreted as shortcuts, rather than typing in the text box. For example, quickly typing t a jumps to the answer box then opens the tag editor, instead of opening the tag editor and entering a there, which is what t <pause> a does.

This is with the official Stack Exchange keyboard shortcuts active.

I think, but I'm not completely sure, that this is actually a pre-existing bug (I guess it's doing something asynchronous to enter the editor), but I hardly ever saw the problem before, whereas it's been annoying me all evening today. So this may be a new bug, or it may be a new performance loss.

Answer 11

Every time I click on my custom tabs or go to the home page, Stack Overflow freezes the browser and then I get the following alert:

This is happening in

OS: Ubuntu 15.10 (64 bits)

Browser: Firefox 45.0

While in Chrome 49.0.2623.110

it just goes in a delay of 5~7 seconds while scrolling down / switching view of tabs

Already deleted recent history, cache and cookies

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EDIT

I have tested it on Windows 10

Firefox version 50.0b1 (Beta version)

With the same results as above

Answer 12

I visited this post just now via hot network questions and although the sorting option was selected by votes, the posts were ordered incorrectly, and after clicking the "votes" again, they sorted properly. And right while I was writing this, there is 1 more answer posted. Don't know if that's all related but there you go.

Answer 13

Tag suggestions are not working after the first tag.

1. Ask a question.
2. In the tag textbox, type the first letters of any tag. Observe that there is a tag suggestions popup.
3. Click on any tag to select the tag. Observe that the completed tag is auto-filled into the textbox.
4. Type the first letters of a second tag. Observe that there is a tag suggestions popup.
5. Click on any tag. Observe that auto-fill is no longer working.
6. Typing anything further in the textbox does not result in the tag suggestion popup.

If the question is posted then edited (thus opening the editing UI again), the second tag can be completed this way. However the third tag will not work in that instance of the edit question UI.

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Problem encountered on:

Site: Aviation.SE

Browser: Internet Explorer 10

Answer 14

Issues in the top nav reputation scroll (Chrome Version 53.0.2785.116 64-bit, Mac OS X 10.11.6):

1. Can't scroll using the grey rail

2. When you collapse reputation for specific day the scroll rail disappears

Answer 15

On the reputation tab in profile, if there is any reputation change since your last visit, the source from where you got the reputation shows up by DOWN arrow there, the bug is, it is showing two times the same sources if there is reputation gain from the same answer.

Once you reload the page, your reputation change since last visit becomes 0, and the bug can not be seen anymore.

Answer 16

This answer was at -3 and was translucent. I clicked the upvote and received a red box with a generic error (something of the order "There was an error. Please try again."). But my view of the answer showed -2, as if my upvote had been accepted.

So I refreshed the page and saw my upvote was not accepted and the answer was still at -3. I clicked the upvote again and this time it worked.

Answer 17

The reputation graph on the Activity tab does not handle the browser zoom properly on the latest Chrome on Windows.

If I set the zoom to 110%, and click on the graph, the blue area doesn't move at all, as if the clicks were ignored. If I set the zoom to 100%, it works fine.